A general few-projection method for tomographic reconstruction of samples consisting of several distinct materials

Journal Article · Mon Jan 11 00:00:00 EST 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3279150· OSTI ID:21347234

Myers, Glenn R ^[1]; Thomas, C David L.; Clement, John G ^[2]; Paganin, David M ^[3]; Gureyev, Timur E ^[4]

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1. Department of Applied Mathematics, Australian National University, Canberra ACT 0200 (Australia)
2. Melbourne Dental School, University of Melbourne, Melbourne 3010 (Australia)
3. School of Physics, Monash University, Clayton 3800 (Australia)
4. CSIRO Materials Science and Engineering, PB 33, Clayton South, 3169 (Australia)

We present a method for tomographic reconstruction of objects containing several distinct materials, which is capable of accurately reconstructing a sample from vastly fewer angular projections than required by conventional algorithms. The algorithm is more general than many previous discrete tomography methods, as: (i) a priori knowledge of the exact number of materials is not required; (ii) the linear attenuation coefficient of each constituent material may assume a small range of a priori unknown values. We present reconstructions from an experimental x-ray computed tomography scan of cortical bone acquired at the SPring-8 synchrotron.

• OSTI ID: 21347234
• Journal Information: Applied Physics Letters, Vol. 96, Issue 2; Other Information: DOI: 10.1063/1.3279150; (c) 2010 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ALGORITHMS
COMPUTERIZED TOMOGRAPHY
DIAGNOSIS
DIAGNOSTIC USES
IMAGE PROCESSING
SKELETON
SPRING-8 STORAGE RING
SYNCHROTRONS
ACCELERATORS
BODY
CYCLIC ACCELERATORS
DIAGNOSTIC TECHNIQUES
MATHEMATICAL LOGIC
ORGANS
PROCESSING
RADIATION SOURCES
STORAGE RINGS
SYNCHROTRON RADIATION SOURCES
TOMOGRAPHY
USES